I'm guessing that you're referring to attending your first RSP and the inprocessing done there.

Each RSP site is different, but you'll likely be given an initial counseling and many of the required classes each new Warrior has to have like sexual harrassment, EO policy, rank structure, history of the Guard, Drill & Ceremony, etc.

Take this time to soak up as much information as you can as it will only help you once you hit Ft Benning.